1 files changed, 205 insertions, 0 deletions
diff --git a/src/background/usecases/CompletionsUseCase.ts b/src/background/usecases/CompletionsUseCase.ts
new file mode 100644
index 0000000..7dc30ac
--- /dev/null
+++ b/src/background/usecases/CompletionsUseCase.ts
@@ -0,0 +1,205 @@
+import CompletionItem from '../domains/CompletionItem';
+import CompletionGroup from '../domains/CompletionGroup';
+import Completions from '../domains/Completions';
+import CommandDocs from '../domains/CommandDocs';
+import CompletionsRepository from '../repositories/CompletionsRepository';
+import * as filters from './filters';
+import SettingRepository from '../repositories/SettingRepository';
+import TabPresenter from '../presenters/TabPresenter';
+import * as properties from '../../shared/settings/properties';
+
+const COMPLETION_ITEM_LIMIT = 10;
+
+export default class CompletionsUseCase {
+  constructor() {
+    this.tabPresenter = new TabPresenter();
+    this.completionsRepository = new CompletionsRepository();
+    this.settingRepository = new SettingRepository();
+  }
+
+  queryConsoleCommand(prefix) {
+    let keys = Object.keys(CommandDocs);
+    let items = keys
+      .filter(name => name.startsWith(prefix))
+      .map(name => ({
+        caption: name,
+        content: name,
+        url: CommandDocs[name],
+      }));
+
+    if (items.length === 0) {
+      return Promise.resolve(Completions.empty());
+    }
+    return Promise.resolve(
+      new Completions([new CompletionGroup('Console Command', items)])
+    );
+  }
+
+  async queryOpen(name, keywords) {
+    let settings = await this.settingRepository.get();
+    let groups = [];
+
+    let complete = settings.properties.complete || properties.defaults.complete;
+    for (let c of complete) {
+      if (c === 's') {
+        // eslint-disable-next-line no-await-in-loop
+        let engines = await this.querySearchEngineItems(name, keywords);
+        if (engines.length > 0) {
+          groups.push(new CompletionGroup('Search Engines', engines));
+        }
+      } else if (c === 'h') {
+        // eslint-disable-next-line no-await-in-loop
+        let histories = await this.queryHistoryItems(name, keywords);
+        if (histories.length > 0) {
+          groups.push(new CompletionGroup('History', histories));
+        }
+      } else if (c === 'b') {
+        // eslint-disable-next-line no-await-in-loop
+        let bookmarks = await this.queryBookmarkItems(name, keywords);
+        if (bookmarks.length > 0) {
+          groups.push(new CompletionGroup('Bookmarks', bookmarks));
+        }
+      }
+    }
+    return new Completions(groups);
+  }
+
+  // eslint-disable-next-line max-statements
+  async queryBuffer(name, keywords) {
+    let lastId = await this.tabPresenter.getLastSelectedId();
+    let trimmed = keywords.trim();
+    let tabs = [];
+    if (trimmed.length > 0 && !isNaN(trimmed)) {
+      let all = await this.tabPresenter.getAll();
+      let index = parseInt(trimmed, 10) - 1;
+      if (index >= 0 && index < all.length) {
+        tabs = [all[index]];
+      }
+    } else if (trimmed === '%') {
+      let all = await this.tabPresenter.getAll();
+      let tab = all.find(t => t.active);
+      tabs = [tab];
+    } else if (trimmed === '#') {
+      if (typeof lastId !== 'undefined' && lastId !== null) {
+        let all = await this.tabPresenter.getAll();
+        let tab = all.find(t => t.id === lastId);
+        tabs = [tab];
+      }
+    } else {
+      tabs = await this.completionsRepository.queryTabs(keywords, false);
+    }
+    const flag = (tab) => {
+      if (tab.active) {
+        return '%';
+      } else if (tab.id === lastId) {
+        return '#';
+      }
+      return ' ';
+    };
+    let items = tabs.map(tab => new CompletionItem({
+      caption: tab.index + 1 + ': ' + flag(tab) + ' ' + tab.title,
+      content: name + ' ' + tab.title,
+      url: tab.url,
+      icon: tab.favIconUrl
+    }));
+    if (items.length === 0) {
+      return Promise.resolve(Completions.empty());
+    }
+    return new Completions([new CompletionGroup('Buffers', items)]);
+  }
+
+  queryBdelete(name, keywords) {
+    return this.queryTabs(name, true, keywords);
+  }
+
+  queryBdeleteForce(name, keywords) {
+    return this.queryTabs(name, false, keywords);
+  }
+
+  querySet(name, keywords) {
+    let items = Object.keys(properties.docs).map((key) => {
+      if (properties.types[key] === 'boolean') {
+        return [
+          new CompletionItem({
+            caption: key,
+            content: name + ' ' + key,
+            url: 'Enable ' + properties.docs[key],
+          }),
+          new CompletionItem({
+            caption: 'no' + key,
+            content: name + ' no' + key,
+            url: 'Disable ' + properties.docs[key],
+          }),
+        ];
+      }
+      return [
+        new CompletionItem({
+          caption: key,
+          content: name + ' ' + key,
+          url: 'Set ' + properties.docs[key],
+        })
+      ];
+    });
+    items = items.reduce((acc, val) => acc.concat(val), []);
+    items = items.filter((item) => {
+      return item.caption.startsWith(keywords);
+    });
+    if (items.length === 0) {
+      return Promise.resolve(Completions.empty());
+    }
+    return Promise.resolve(
+      new Completions([new CompletionGroup('Properties', items)])
+    );
+  }
+
+  async queryTabs(name, excludePinned, args) {
+    let tabs = await this.completionsRepository.queryTabs(args, excludePinned);
+    let items = tabs.map(tab => new CompletionItem({
+      caption: tab.title,
+      content: name + ' ' + tab.title,
+      url: tab.url,
+      icon: tab.favIconUrl
+    }));
+    if (items.length === 0) {
+      return Promise.resolve(Completions.empty());
+    }
+    return new Completions([new CompletionGroup('Buffers', items)]);
+  }
+
+  async querySearchEngineItems(name, keywords) {
+    let settings = await this.settingRepository.get();
+    let engines = Object.keys(settings.search.engines)
+      .filter(key => key.startsWith(keywords));
+    return engines.map(key => new CompletionItem({
+      caption: key,
+      content: name + ' ' + key,
+    }));
+  }
+
+  async queryHistoryItems(name, keywords) {
+    let histories = await this.completionsRepository.queryHistories(keywords);
+    histories = [histories]
+      .map(filters.filterBlankTitle)
+      .map(filters.filterHttp)
+      .map(filters.filterByTailingSlash)
+      .map(pages => filters.filterByPathname(pages, COMPLETION_ITEM_LIMIT))
+      .map(pages => filters.filterByOrigin(pages, COMPLETION_ITEM_LIMIT))[0]
+      .sort((x, y) => x.visitCount < y.visitCount)
+      .slice(0, COMPLETION_ITEM_LIMIT);
+    return histories.map(page => new CompletionItem({
+      caption: page.title,
+      content: name + ' ' + page.url,
+      url: page.url
+    }));
+  }
+
+  async queryBookmarkItems(name, keywords) {
+    let bookmarks = await this.completionsRepository.queryBookmarks(keywords);
+    return bookmarks.slice(0, COMPLETION_ITEM_LIMIT)
+      .map(page => new CompletionItem({
+        caption: page.title,
+        content: name + ' ' + page.url,
+        url: page.url
+      }));
+  }
+}